Welcome to Middleton Dental Care

Meet the Doctors of Middleton Dental Care They have dedicated their careers to providing you with the best that dentistry has to offer. They are continually upgrading themselves and their practice with the latest techniques and approaches in order to offer you advanced, state-of-the-art, comfortable, personalized, and antiseptic dental care in a safe, comfortable atmosphere.


Dr. Nicholas DiMauro D.D.S. – Dr. DiMauro has been an integral member of the Middleton dental community for over 15 years. He is a graduate of Georgetown University School of Dentistry and also serves as a Commander in the United States Navy Reserves. His dental expertise is sure to exceed your expectations. He is pleased to have on staff a specialist in periodontics (gum therapy) and in prosthodontics (crown & bridge).			Dr. Robert B. Walsh, Periodontist. – Dr. Walsh is a graduate of Georgetown University School of Dentistry. He completed his post graduate training in periodontics at the National Naval Medical Center in Bethesda, Maryland. He is now retired from the U.S. Navy reserves after 20 years of service. Dr. Walsh has been a diplomat of the American Board of Periodontology since 1998. He continues his education through courses focusing on dental implants, periodontal regenerative therapies, and periodontal plastic surgery.

Dr. Priscilla K. Magnuson, D.M.D. – Dr. Magnuson received her Doctorate in Dental Medicine from Tufts University and her undergraduate degree from Simmons College in Boston. She is dedicated to providing compassionate, quality dental care in a comfortable environment. She has advanced certification in Invisalign treatment (teeth straightening using clear, removable aligners). Dr. Magnuson is a member of the American Dental Association, the Massachusetts Dental Society, and the North Shore Dental Society.			Dr. C. Thomas Stefl, D.D.S. – Dr. Stefl is a graduate of McGill University. He completed his post-graduate training in prosthodontics at the National Naval Medical Center in Bethesda, Maryland, and is a board-certified specialist in implant, esthetic, and reconstructive dentistry. He retired from the U.S. Navy after 23 years of active service. Dr. Stefl has been a diplomat of th American Board of Prosthodontists since 1975. He also teaches at Harvard School of Dental Medicine, and works at the VA Bedford Dental Clinic.

Meet our Staff
Debbie Arillotta Appointment Coordinator - Debbie has been with Middleton Dental Care since 2006. She will help you coordinate your dental appointments. She is friendly and courteous, and looks forward to meeting and extending you a personal tour of our office.			Sheila Ohanesian Dental Hygienist - Sheila graduated from Forsyth School for Dental Hygiene in Boston. She then went on to get her Bachelor of Science at Northeastern University. She continues to acquire knowledge on the latest treatment for Periodontal Disease, using non-surgical procedures, antibacterial therapy, fluoride, enzyme suppression and proper nutrition. Sheila will provide a comprehensive oral exam and cleaning. You will also leave with an excellent education on how to maintain the health of your teeth and gums.

Melissa Southard Dental Assistant - Melissa has been with Middleton Dental Care since 2005. She is familiar with the specialties of dentistry, and has assisted in all types of procedures. She has successfully passed the Massachusetts Dental Society course in Radiology, and is certified to take dental radiographs. Melissa has decided to become a dental hygienist, and is currently attending Forsyth. When available, she still offers her expertise in teeth whitening.			Ashley Arillotta Dental Assistant - Ashley has been an invaluable asset to the Middleton Dental Care team since 2006. She is experienced in chair side assisting with the dentists, as well as with the dental hygienists. She is always positive and very assertive in helping patients feel comfortable throughout their dental treatments. Ashley is also skilled in making appointments for patients and navigating our office computer system. She has successfully passed the Massachusetts Dental Society course in Radiology, and is certified to take dental radiographs.

Joanne Murphy Dental Assistant - Joanne has been with Middleton Dental Care since the opening of the practice in 1992. She has over twenty years of experience in dentistry. She maintains all of the dental equipment and ensures the smooth flowing of the office. She is a fantastic assistant, and a funny, friendly person. Joanne works evenings for those who need a little flexibility for their busy life styles.